28B0375-400

Overview

The 28B0375-400 is a solid cylindrical ferrite core manufactured by Laird-Signal Integrity Products, designed for cable electromagnetic interference suppression. It exhibits an impedance of 81 Ohms at 100 MHz and utilizes Material 28 composition. The component features an inner diameter of 5.08 mm (0.200 inches) and an outer diameter of 9.52 mm (0.375 inches). Its physical length measures 4.83 mm (0.190 inches). This free-hanging core is intended for snap-on installation onto cables to attenuate high-frequency noise.

Feature Summary

• Solid cylindrical construction for direct cable mounting
• Material 28 formulation optimized for specific frequency attenuation
• Free-hanging design allowing easy installation on existing wiring

Applications

• Suppression of common-mode noise on power cables
• Attenuation of radio frequency interference in signal lines
• EMI reduction on communication interface cables

Procurement Notes

Verify the exact impedance value of 81 Ohms at 100 MHz against your specific frequency requirements. Confirm that the 5.08 mm inner diameter accommodates the target cable insulation thickness without excessive force. Ensure the Material 28 specification aligns with the targeted noise spectrum. Check RoHS3 compliance status if required by your manufacturing standards.

Selection Notes

Select this component when a snap-on solution is preferred over pre-installed beads. The 5.08 mm bore size suits medium-gauge cables. Consider the 81 Ohm impedance level for moderate noise environments. Verify that the solid core geometry fits within the available spatial constraints around the cable assembly compared to hinged alternatives.

Part Context

This part belongs to the 28B series of cable ferrites from Laird-Signal Integrity Products. It shares the Material 28 characteristic with other cores in this family but differs in physical dimensions and impedance values. It serves as a passive filtering element distinct from surface-mount chip beads or common mode chokes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.